Title (en)

INTEGRAL TYPE WHEEL MADE OF LIGHT METAL HAVING GRAIN FLOW METALLOGRAPHIC STRUCTURE

Publication

EP 0500969 A4 19930310 (EN)

Application

EP 91916597 A 19910919

Priority

• JP 24822291 A 19910902
• JP 24979390 A 19900919

Abstract (en)

[origin: WO9205039A1] An integral type wheel made of light metal having a grain flow metallographic structure containing grain flows, at least some of which continue from the peripheral position of the wheel disk part to the outermost part of the outer rim, extending zigzag with respect to the profile of the outer rim having a plurality of bent parts, and converging at the outermost periphery of the outer rim. The wheel has densely running grain flows excellent in plasticity and workability, and is high in strength. An integral type wheel made of light metal having a grain flow metallographic structure as above is manufactured by means of a hot forging device comprising an upper die (6) equipped with an electric heater (7) and provided with a flash (12) and gutter (13), and a lower die (4).

IPC 1-7

B60B 3/02; B21K 1/32; B21K 29/00

IPC 8 full level

B21K 1/32 (2006.01); B21K 29/00 (2006.01); B60B 3/02 (2006.01); B60B 3/06 (2006.01)

CPC (source: EP KR)

B60B 3/02 (2013.01 - KR); B60B 3/06 (2013.01 - EP)

Citation (search report)

• [A] US 2519548 A 19500822 - CORNELL DANA R
• [E] GB 2249063 A 19920429 - TOPY IND [JP]
• See references of WO 9205039A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 9205039 A1 19920402; CA 2068999 A1 19920320; EP 0500969 A1 19920902; EP 0500969 A4 19930310; JP H058601 A 19930119; KR 920702295 A 19920903

DOCDB simple family (application)

JP 9101245 W 19910919; CA 2068999 A 19910919; EP 91916597 A 19910919; JP 24822291 A 19910902; KR 920701115 A 19920513